Skye McCole Bartusiak had a recurring role during the second season of the hit TV series 24.Childstarlets.com

Skye McCole Bartusiak, the Houston actress who shot to stardom as Mel Gibson's youngest daughter in the 2000 movie, The Patriot, was found dead in her home Saturday. She was 21.

According to news reports, she died in her sleep, although the cause of death has not been determined. Her mother, Helen McCole Bartusiak, told CNN that Skye had been suffering from epileptic seizures in recent days.

"We think she had a seizure and choked and nobody was there," Helen McCole Bartusiak said.

The actress's boyfriend found her in the garage apartment adjacent to her parents' home where she lived. Her mother started cardiopulmonary resuscitation on her daughter before paramedics arrived.

Bartusiak was only 7 years old when she won the role opposite Gibson in the hit movie about the Revolutionary War. As a child actor, she also appeared in The Cider House Rules, with Charlize Theron and Tobey Maguire, in 1999 and Don't Say A Word, with Michael Douglas, in 2001.

She also appeared on network shows like House, Lost, CSI and 24, where she had a recurring role at Megan Matheson.

In recent years she has starred in short films, including a 7-minute comedy called Frame of Reference. She had been preparing to produce and direct her first feature film, her mother said.

A family friend told Deadline that she was a "brave and caring young woman" who "is deeply missed by her family and friends."

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